.content-header {
  width: 100%;
  height: 100vh;
  min-height: 300px;
  background: url('../img/about/about-header.jpg') center center;
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  position: relative;
  padding: 0 0 0 5%;
  overflow: hidden;
}
.content-header .header-title {
  width: 30%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}
.content-header .header-title h1 {
  font-size: 64px;
  line-height: 64px;
  padding: 40px;
}
.content-header .header-content {
  width: 50%;
  height: 100%;
  background: linear-gradient(to left, rgba(35,46,68,1), rgba(35,46,68,0));
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  padding: 10%;
}

@keyframes circle_zoom {
  0% {
    transform: scale(0.6);
    opacity: 0.2;
  }
  100% {
    transform: scale(1.18);
    opacity: 1;
  }
}
.detail-circle {
  width: 1200px;
  height: 1200px;
  border-radius: 1200px;
  border: 1px solid var(--color-white);
  position: absolute;
  top: -200px;
  right: -100px;
  animation: circle_zoom 20s infinite;
}

.about-us {
  width: 100%;
  height: 100vh;
  min-height: 700px;
  color: var(--color-black);
  background: url('../img/yellow-background.jpg') center center no-repeat;
  background-size: cover;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 0 0 0 10%;
  padding: 0 0 0 120px;
  overflow: hidden;
  position: relative;
}
.about-us .us-content {
  width: 30%;
  height: auto;
}
.about-us .about-image {
  width: 40%;
  height: auto;
}
@keyframes about_circle_zoom {
  0% {
    transform: scale(0.8);
  }
  100% {
    transform: scale(1.1);
  }
}
.about-detail-circle {
  width: 1050px;
  height: 1050px;
  border-radius: 1200px;
  border: 1px solid var(--color-blue);
  position: absolute;
  bottom: -150px;
  right: -200px;
  animation: about_circle_zoom 20s infinite;
}

.about-values {
  background: url('../img/blue-background.jpg') center center no-repeat;
  background-size: cover;
  width: 100%;
  height: 100vh;
  min-height: 700px;
  text-align: center;
  padding: 120px 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}
.about-values h2 {
  width: 100%;
  font-size: 40px;
  line-height: 40px;
}
.about-values .values-list {
  width: 1130px;
  height: auto;
  display: flex;
  margin: 64px auto 0;
  justify-content: space-between;
}
.about-values .values-list .value {
  width: 20%;
  text-align: left;
}
.about-values .values-list .value .value-icon {
  height: 48px;
  margin: 0 0 32px;
  display: block;
}

@media (max-width: 900px) {
  .content-header {
    background: url('../img/about/about-header-mobile.jpg') center center;
    background-size: cover;
    min-height: auto;
    height: auto;
    align-items: flex-end;
    padding: 220px 40px 80px;
  }
  .content-header .header-title,
  .content-header .header-content {
    width: 100%;
    background: none;
    padding: 0;
  }
  .content-header .header-title h1 {
    padding: 0;
  }

  .about-us {
    padding: 80px 40px;
  }
  .about-us .us-content {
    width: 100%;
  }
  .about-us .about-image {
    display: none;
  }
  
  .about-values {
    height: auto;
    padding: 80px 40px;
    text-align: left;
  }
  .about-values .values-list {
    width: 100%;
    flex-wrap: wrap;
  }
  .about-values .values-list .value {
    width: 100%;
    margin: 0 0 40px;
  }
}